31311135013442 has 8 divisors (see below), whose sum is σ = 47060824170000. Its totient is φ = 15624193623444.

The previous prime is 31311135013439. The next prime is 31311135013469. The reversal of 31311135013442 is 24431053111313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31311135013399 and 31311135013408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15686940392 + ... + 15686942387.

It is an arithmetic number, because the mean of its divisors is an integer number (5882603021250).

Almost surely, 2^{31311135013442} is an apocalyptic number.

31311135013442 is a deficient number, since it is larger than the sum of its proper divisors (15749689156558).

31311135013442 is a wasteful number, since it uses less digits than its factorization.

31311135013442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31373883280.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 31311135013442 its reverse (24431053111313), we get a palindrome (55742188124755).

The spelling of 31311135013442 in words is "thirty-one trillion, three hundred eleven billion, one hundred thirty-five million, thirteen thousand, four hundred forty-two".